Hydrolyzed Polymaleic Anhydride (HPMA)

CAS No.                       :        2nth="9" w:st="on" year="6099">6099-09-2                

Structural Formula    :        nnecttype="rect" o:extrusionok="f">

Properties                   :

HPMA is a low molecular weight polymeride, with average molecular weight 400-800. no toxicity, soluble in water, high chemical and thermal stability, decomposed temperature above value="330" tcsc="0" unitname="℃" w:st="on">330℃. It has obvious threshold effect under high temperature (value="350" tcsc="0" unitname="℃" w:st="on">350℃) and high pH (8.3) level, suitable to be used in alkaline water system or built with agents. It has a good scale inhibition against carbonate and phosphate scales under temperature value="300" tcsc="0" unitname="℃" w:st="on">300℃ with effective time as long as 100 hours. Due to its good scale inhibition and high temperature tolerance properties. It is widely used in desalination plant of flash vaporization equipment, a low pressure boiler, steam locomotive, crude oil evaporation, petroleum pipeline, and industrial circulating cool water systems. In addition. It has a good corrosion inhibition effect when used together with zinc salt. It can also used as additives for cement.

Specification              : 

Usage                          :

HPMA is usually used together with organic phosphonate at dosage of 1-15ppm for circulating cool water system, oilfield fill water, crude oil dewatering and low-pressure boilers. It has a good scale inhibition (98%) and scale stripping properties. When used together with zinc salts. It can effectively inhibit carbon steel corrosion.

Package and Storage          :

Normally in value="200" tcsc="0" unitname="l" w:st="on">200L plastic drum, IBC (value="1000" tcsc="0" unitname="l" w:st="on">1000L) can also be used as required. Storage for one year in a cool and dry place.

Safety Protection       :

Acidity. Avoid contact with eyes and skin. once contacted, flush with water.